Fluorosilicone Polymer Gum from United States
Fluorosilicone polymer gum is a silicone polymer in an uncured, gum-like primary form, used in aerospace seals for fuel resistance. It is classified here because the siloxane monomer units predominate and the fluoroalkyl side groups are appendages to the main polymer chain, making it a chemically modified silicone.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is in primary form (e.g
• gum, lump, or powder) and not a finished article, as finished goods fall under other headings
• Provide a technical datasheet to the CBSA showing the siloxane content and fluoroalkyl modification to support classification
• Verify if the product is subject to Canadian chemical import regulations under the Environmental Protection Act, 1999